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Radiation diagnostic apparatus and radiation diagnostic method

A diagnostic device and radiation technology, which is applied in the fields of radiological diagnostic instruments, radiological diagnostic image/data processing, radiation detection devices, etc. Effect

Pending Publication Date: 2021-08-20
CANON MEDICAL SYST COPRPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the scintillation light is re-released along with the transition process of the excited state generated by the annihilation gamma ray back to the ground state over time, the response speed is relatively slow, and sometimes occurs when the positron is determined to be annihilated. error

Method used

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  • Radiation diagnostic apparatus and radiation diagnostic method
  • Radiation diagnostic apparatus and radiation diagnostic method
  • Radiation diagnostic apparatus and radiation diagnostic method

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Embodiment approach

[0019] First, use Figure 1 to Figure 6 , the configuration of the radiation diagnostic apparatus according to the embodiment will be described using a PET apparatus as an example.

[0020] figure 1 It is a figure which shows the structure of the PET apparatus 100 concerning an embodiment. Such as figure 1 As shown, the PET apparatus 100 according to the embodiment includes a gantry apparatus 10 and a console apparatus 20 .

[0021] The gantry device 10 detects Cherenkov A first detector 1 for light and a second detector 2 for detecting scintillation light detect pairs of annihilation gamma rays released from positrons in the subject P. In addition, the gantry device 10 generates count information based on the output signals of the first detector 1 and the second detector 2 through the first timing information acquisition circuit 101 and the second timing information acquisition circuit 102 .

[0022] More specifically, the gantry device 10 includes a top plate 103, a be...

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Abstract

Embodiments relate to a radiation diagnostic apparatus and a radiation diagnostic method. The purpose of the present invention is to provide a radiation diagnostic device and a radiation diagnostic method capable of improving image quality. A radiation diagnostic apparatus according to an embodiment includes a first detector and a second detector. The first detector detects Cherenkov light generated when radiation passes therethrough. The second detector is provided facing the first detector on a farther side from a radiation generation source, and detects energy information of radiation.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2020-014410 filed on January 31, 2020 and Japanese Patent Application No. 2021-008503 filed on January 22, 2021, the entire contents of which are incorporated herein. technical field [0002] Embodiments disclosed in this specification and the drawings relate to a radiation diagnostic apparatus and a radiation diagnostic method. Background technique [0003] A PET (Positron Emission Tomography, positron emission computed tomography) apparatus is known as a radiation diagnostic apparatus. For the PET device, by detecting the scintillation light generated when the pairs of annihilation gamma rays that are released by the annihilation of the positron and the electron pair released by the radioactive drug labeled with the positron-releasing nuclide enter the scintillator, the positive The electron's pair annihilation site, which is used to generate medical images. [0004] However, since the scinti...

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/037A61B6/42A61B6/4266A61B6/52G01T1/22G01T1/2985G01T1/1603G01T1/2018A61B6/5205A61B6/5282A61B6/4258A61B6/4275A61B6/482A61B6/4241
Inventor 河田刚中井宏章
Owner CANON MEDICAL SYST COPRPORATION